%0 Journal Article %J Stem Cells %D 2008 %T Secreted Proteoglycans Directly Mediate Human Embryonic Stem Cell-Basic Fibroblast Growth Factor 2 Interactions Critical for Proliferation %A Levenstein, M. E. %A Berggren, W. T. %A Lee, J. E. %A Conard, K. R. %A Llanas, R. A. %A Wagner, R. J. %A L. M. Smith %A Thomson, J. A. %B Stem Cells %S 26 %I ALPHAMED PRESS; 318 BLACKWELL ST, STE 260, DURHAM, NC 27701-2884 USA %V 26 %P 3099-3107 %G eng %R 10.1634/stemcells.2007-1056 %F ISI 1009 01 15